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Finding the Fourth Proportional to 146,996.61, 220,482.94 and 47,129.91

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Solution

The fourth proportional to 146,996.61, 220,482.94 and 47,129.91 is: 70,691.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,996.61 : 220,482.94 = 47,129.91 : x
  2. Step 2: Convert to fraction form
    146,996.61/220,482.94 = 47,129.91/x
  3. Step 3: Cross multiply
    146,996.61x = 220,482.94 × 47,129.91
  4. Step 4: Simplify right side
    146,996.61x = 10,391,341,118.74
  5. Step 5: Solve for x
    x = 10,391,341,118.74/146,996.61
  6. Step 6: Final answer
    x = 70,691.03

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.